ar

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

foci y^2=-9x

الحلّ

foci

y^{2} = - 9 x

الحلّ

(- \frac{9}{4}, 0)

خطوات الحلّ

Rewrite

y^{2} = - 9 x

in the standard form:

4 (- \frac{9}{4}) (x - 0) = (y - 0)^{2}

(h, k) = (0, 0), p = - \frac{9}{4}

Parabola is symmetric around the x-axis and so the focus lies a distance

p

from the center

(0, 0)

along the x-axis

(0 + p, 0)

= (0 + (- \frac{9}{4}), 0)

بسّط

(- \frac{9}{4}, 0)

أمثلة شائعة

radius x^2+y^2=36 radius

x^{2} + y^{2} = 36

foci y=x^2 foci

y = x^{2}

vertices y^2=-12x vertices

y^{2} = - 12 x

foci x^2-y^2=25 foci

x^{2} - y^{2} = 25

center x^2+y^2+6x-4y+3=0 center

x^{2} + y^{2} + 6 x - 4 y + 3 = 0